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  <title>Gets the interval</title>
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  <div id="layout-content"><div id="dateperiod.getdateinterval" class="refentry">
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  <h1 class="refname">DatePeriod::getDateInterval</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.6.5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">DatePeriod::getDateInterval</span> &mdash; <span class="dc-title">
   Gets the interval
  </span></p>

 </div>

 <div class="refsect1 description" id="refsect1-dateperiod.getdateinterval-description">
  <h3 class="title">说明</h3>
  <p class="para">面向对象风格</p>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>DatePeriod::getDateInterval</strong></span>(): <span class="type"><a href="class.dateinterval.html" class="type DateInterval">DateInterval</a></span></div>

  <p class="para rdfs-comment">
   Gets a <span class="classname"><a href="class.dateinterval.html" class="classname">DateInterval</a></span> <span class="type">object</span>
   representing the interval used for the period.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-dateperiod.getdateinterval-parameters">
  <h3 class="title">参数</h3>
  <p class="para">此函数没有参数。</p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-dateperiod.getdateinterval-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns a <span class="classname"><a href="class.dateinterval.html" class="classname">DateInterval</a></span> <span class="type">object</span>
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-dateperiod.getdateinterval-examples">
  <h3 class="title">范例</h3>
  <div class="example" id="example-2064">
   <p><strong>示例 #1 <span class="methodname"><strong>DatePeriod::getDateInterval()</strong></span> example</strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$period&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">DatePeriod</span><span style="color: #007700">(</span><span style="color: #DD0000">'R7/2016-05-16T00:00:00Z/P1D'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$interval&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$period</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">getDateInterval</span><span style="color: #007700">();<br />echo&nbsp;</span><span style="color: #0000BB">$interval</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">format</span><span style="color: #007700">(</span><span style="color: #DD0000">'%d&nbsp;day'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
   </div>

   <div class="example-contents"><p>以上例程会输出：</p></div>
   <div class="example-contents screen">
<div class="cdata"><pre>
1 day
</pre></div>
   </div>
  </div>
 </div>


 <div class="refsect1 seealso" id="refsect1-dateperiod.getdateinterval-seealso">
  <h3 class="title">参见</h3>
  <ul class="simplelist">
   <li class="member"><span class="methodname"><a href="dateperiod.getstartdate.html" class="methodname" rel="rdfs-seeAlso">DatePeriod::getStartDate()</a> - Gets the start date</span></li>
   <li class="member"><span class="methodname"><a href="dateperiod.getenddate.html" class="methodname" rel="rdfs-seeAlso">DatePeriod::getEndDate()</a> - Gets the end date</span></li>
  </ul>
 </div>


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